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The measures of two complementary angles are (2x-7) and (x+4) find x |
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Answer» 2x-7+x+4=90°(complementary angles) 2x+x-7+4=90 3x-3=90 3x=90+3 3x=93 x=93/3 x=31 We know that, sum of two complementary angles = 90° ∴ (2x – 7) + (x + 4) = 90° 2x - 7 + x + 4 = 90° ⇒ 2x + x – 7 + 4 = 90° ⇒ 3x – 3 = 90° ⇒ 3x = 90 + 3 ⇒ 3x = 93 ⇒ x = 93/3 x = 31 |
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